"She is the best, you know? She's my little twin soul," Kim said of Kylie. "She's such a free spirit, and I love that. She's the sweetest."
Kendall and Kylie also revealed to ET the best beauty tips they've ever received from their older, style-savvy sisters. "I love Kim's style right now," Kylie complimented. "…I feel like Kourtney has the best style overall."